Topografiske kart Robertville

The region was uplifted by a mantle plume during the last few hundred thousand years, as measured from the present elevation of old river terraces.

Gjennomsnittlig høyde: 659 m

In 1923, the 6-metre (20-foot) Baltia tower was built on the summit to allow visitors to reach an altitude of 700 m (2,300 ft). A stone tower built in 1933/34 by François Fagnoul from Ovifat on the Botrange crowned a steel weather vane with the relieved name SICCO CAMPO until World War II. Meanwhile, the…

Gjennomsnittlig høyde: 658 m

Gjennomsnittlig høyde: 591 m